NAD C 425 Introduction, Notes On Installation, Quick Start, Rear Panel Connections Figure

Introduction

NOTES ON INSTALLATION

Your NAD C 425 should be placed on a firm, level surface. Avoid placing the unit in direct sunlight, near sources of heat and damp or in poorly ventilated positions. It comes with RCA leads for connection to your amplifier. Ensure that leads and connectors are not damaged in any way and all connectors are firmly pushed home.

If the unit is not going to be used for some time, disconnect the plug from the AC socket. Should water get into your NAD C 425, shut off the power to the unit and remove the plug from the AC socket. Have the unit inspected by a qualified service technician before attempting to use it again.

DO NOT REMOVE THE COVER; THERE ARE NO USER- SERVICEABLE PARTS INSIDE.

Use a dry soft cloth to clean the unit. If necessary, lightly dampen the cloth with soapy water. Do not use solutions containing benzyl or other volatile agents.

QUICK START

Use the RCA-to-RCA lead to connect the NAD C 425 left & right outputs to the Tuner Input of your amplifier.

1Connect C 425’s output to amplifier.

2Connect AM and FM antenna (see figure 3).

3Plug in the AC power cord.

4Press the POWER button (No. 1) to turn on the NAD C 425.

5Press the AM/FM button (No. 6) to select AM or FM reception.

6Press Preset/Tune button so that "PRESET" isn’t lit in display; the tuner is now in Tune mode.

7Rotate the PRESET/TUNE Control or to select a station.

REAR PANEL CONNECTIONS FIGURE 1

1FM Antenna - A ribbon wire FM antenna is included and should be connected to the FM connector at the rear of the unit using the supplied "balun" adaptor (see figure 3). The ribbon aerial should be mounted on a vertical surface and placed so that it forms a "T". Experiment with placement of the antenna to find the position that gives the best signal strength and lowest background noise. An inadequate FM signal normally results in high levels of hiss, especially in stereo, and interference from external electrical sources. In areas of poor FM reception, the tuner section’s performance can be improved by using an externally mounted FM antenna. A qualified aerial installer will be able to advise and fit a recommended aerial for your reception conditions.

2AM Antenna - An AM loop antenna is supplied with the NAD C425 and is required for AM reception. To connect the AM antenna, first press the keys on the Antenna terminals downwards. Insert the bare antenna wires into the two terminal holes and push the connector keys upwards again to secure the connection (see figure 3). Test various positions for the antenna but always ensure the loop is placed vertically for best reception. Placing the antenna close to large metal items such as metal shelves or radiators may interfere with reception.

3Output - Using twin RCA-to-RCA leads, connect to the left (white) and right (red) audio outputs to the "Tuner" input or other line-level input such as "Aux" input of your amplifier. Do not connect this cable to the amplifier’s "Phono" input.

4IR in - The IR IN connector is used to pass commands from other units fitted with IR OUT connectors. This allows centralized control of a complete system, and also allows some of the basic functions of other NAD components (such as a CD player or cassette-deck) also equipped with IR IN to be controlled with an NAD system remote control. To function with such other units, connect the C 425’s IR IN to the IR OUT on the other unit. IR IN connectors can be daisy- chained, IN to OUT, so that a whole system can be controlled from the remote control facilities of one unit.

NOTE

The NAD C 425 has a built-in receiver for commands from a remote control and doesn’t need to rely on IR IN to be remotely operated. It is advisable not to connect IR IN if the other units that have their own built-in remote control command receiver and are positioned together, in direct view from the remote control handset. If you are unsure, try operating the products without IR IN first; if the unit responds to the remote control command, it will not be necessary to connect IR IN.

5+12V Trigger in - This input allows the C 425 to be switched remotely to Stand-by and On by ancillary equipment such as an amplifier or preamp, AV processor, etc. which are also equipped with a 12V trigger output. For switching Stand-by/Power On of the C 425 by an external component, connect the12V-trigger input of the C 425 to the remote component’s DC output jack. The plug required is a standard 3.5mm Mini-Jack plug ("mono"): The tip is the live or + connection, the shaft of the input jack is the 12V-trigger – or ground connection.

NOTE

The C 425’s 12V Trigger will work within a range of 6 to 15 V DC level and typically draws less than 10mA of current. Check the specifications of the Trigger output terminal on the remote component to ensure it is compatible with the C 425’s 12V trigger input. NAD components equipped with 12V output triggers are fully compatible with the C 425’s 12V input trigger. Before making any connections to any 12V trigger input or output, make sure all components are disconnected from the AC mains. Failure to observe the above may result in damage to the C 425 or any ancillary components attached to it. If in doubt over the connections, installation and operation of the 12V trigger output consult your NAD dealer.

6AC Line cord - Plug the AC power cord into a live AC wall socket or to an AC convenience outlet at the rear of your amplifier.

7RS-232 - Connect to the RS-232 serial port of a home-automation system or personal computer (see “System Integration,” below).

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